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From: =?utf-8?q?Andr=C3=A9_Draszik?= <andre.draszik@linaro.org>
Date: Wed, 09 Apr 2025 21:37:22 +0100
Subject: [PATCH v4 01/32] dt-bindings: mfd: samsung,s2mps11: add s2mpg10
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Message-Id: <20250409-s2mpg10-v4-1-d66d5f39b6bf@linaro.org>
References: <20250409-s2mpg10-v4-0-d66d5f39b6bf@linaro.org>
In-Reply-To: <20250409-s2mpg10-v4-0-d66d5f39b6bf@linaro.org>
To: Krzysztof Kozlowski <krzk@kernel.org>, Lee Jones <lee@kernel.org>,
Rob Herring <robh@kernel.org>, Conor Dooley <conor+dt@kernel.org>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>, Alim Akhtar <alim.akhtar@samsung.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Peter Griffin <peter.griffin@linaro.org>,
Tudor Ambarus <tudor.ambarus@linaro.org>,
Will McVicker <willmcvicker@google.com>, kernel-team@android.com,
linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-rtc@vger.kernel.org,
=?utf-8?q?Andr=C3=A9_Draszik?= <andre.draszik@linaro.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
X-Mailer: b4 0.14.2
The Samsung S2MPG10 PMIC is similar to the existing PMICs supported by
this binding.
It is a Power Management IC for mobile applications with buck
converters, various LDOs, power meters, RTC, clock outputs, and
additional GPIOs interfaces.
Unlike other Samsung PMICs, communication is not via I2C, but via the
Samsung ACPM firmware, it therefore doesn't need a 'reg' property but
needs to be a child of the ACPM firmware node instead.
S2MPG10 can also act as a system power controller allowing
implementation of a true cold-reset of the system.
Support for the other components like regulators and power meters will
be added in subsequent future patches.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Andr=C3=A9 Draszik <andre.draszik@linaro.org>
---
v3:
* keep 'regulators' subnode required even for s2mpg10 (Krzysztof)
v2:
* drop ACPM phandle 'exynos,acpm-ipc', and expect this to be a child
node of ACPM directly instead
* allow, but still don't enforce, regulators subnode, to ease adding it
in the future
* deny 'reg' property, it's incorrect to optionally have it for S2MPG10
* enforce 'interrupts' or 'interrupts-extended' property. S2MPG10 can
not work without. Note this is done as-is using the oneOf, because
dtschema's fixups.py doesn't handle this nesting itself
---
.../devicetree/bindings/mfd/samsung,s2mps11.yaml | 26 ++++++++++++++++++=
+++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml b/D=
ocumentation/devicetree/bindings/mfd/samsung,s2mps11.yaml
index ac5d0c149796b6a4034b5d4245bfa8be0433cfab..d6b9e29147965b6d8eef786b0fb=
5b5f198ab69ab 100644
--- a/Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml
+++ b/Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml
@@ -20,6 +20,7 @@ description: |
properties:
compatible:
enum:
+ - samsung,s2mpg10-pmic
- samsung,s2mps11-pmic
- samsung,s2mps13-pmic
- samsung,s2mps14-pmic
@@ -58,16 +59,39 @@ properties:
reset (setting buck voltages to default values).
type: boolean
=20
+ system-power-controller: true
+
wakeup-source: true
=20
required:
- compatible
- - reg
- regulators
=20
additionalProperties: false
=20
allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,s2mpg10-pmic
+ then:
+ properties:
+ reg: false
+ samsung,s2mps11-acokb-ground: false
+ samsung,s2mps11-wrstbi-ground: false
+
+ oneOf:
+ - required: [interrupts]
+ - required: [interrupts-extended]
+
+ else:
+ properties:
+ system-power-controller: false
+
+ required:
+ - reg
+
- if:
properties:
compatible:
--=20
2.49.0.604.gff1f9ca942-goog